| Grand Isle - Occupational Data | FIPS Code=13010 |
| 1970 | |
| Employed Population | 324 |
| Professional - Technical - Kindred | 36 |
| Non-Farm Manager - Administrator | 10 |
| Sales Worker | 10 |
| Clerical Worker | 59 |
| Craftsperson - Foreperson | 44 |
| Non-Transport Operative | 32 |
| Transport Operative | 15 |
| Non-Farm Laborer | 0 |
| Farmer - Farm Manager | 41 |
| Farm Laborer | 40 |
| Non-Private Service | 14 |
| Household Service | 16 |
| Occupation Not Reported | 7 |
| 1980 | 1990 | |
| Employed Population | 515 | 889 |
| Executive - Administrator | 58 | 118 |
| Professional Speciality | 49 | 116 |
| Technicians - Related Support | 14 | 39 |
| Sales | 53 | 83 |
| Administrative - Clerical | 87 | 123 |
| Private Household Service | 1 | 2 |
| Protective Service | 2 | 0 |
| Non-Household, Non-Protective Service | 37 | 92 |
| Natural Resources | 43 | 57 |
| Precision Production - Craft | 67 | 136 |
| Machine Operators | 57 | 53 |
| Mover | 34 | 45 |
| Labor | 13 | 25 |
| 1980 | 1990 | ||
| Per Cent of Working Population Employed in Town of Residence | 20.75 | 17.80 | |
| 1970 | 1980 | 1990 | |
| Unemployment Rate | 4.42 | 11.66 | 4.10 |